What is the message of the cartoon Join or die?

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Tags

1. #between
2. #relations
3. #france
4. #american
5. #difference
6. #colonial
7. #indian
8. #unite
9. #franklin
10. #unity
11. #colonists
12. #designed
13. #management
14. #colonies
15. #against
16. #defense
17. #british